✨ New Arrivals Just Dropped!Explore
$3.92
Original: $11.20
-65%Ships from Sydney - 0.5 in. Key Hub—
$11.20
$3.92The Story
This hub is set with a 1/2 in. bore with two 1/8 in. keyways.
- Description
-
This is the "500EX Key Hub". It is a slightly different version of the 500 Key Hub. It is manufactured differently, as it is extruded. Also, there is a 1.124 in. diameter boss on each side of the hub flange, providing a location for 1.125 in. bore flat sprockets. Are you having a hard time keeping your sprocket concentric with your hub? This hub is the trick.
The bore is a 1/2 in. hole with two 1/8 in. keyways. Only one keyway is needed to drive most wheels, so the second one is extra.
Also, the keyways are consistently aligned with the mounting holes.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
This hub is set with a 1/2 in. bore with two 1/8 in. keyways.
- Description
-
This is the "500EX Key Hub". It is a slightly different version of the 500 Key Hub. It is manufactured differently, as it is extruded. Also, there is a 1.124 in. diameter boss on each side of the hub flange, providing a location for 1.125 in. bore flat sprockets. Are you having a hard time keeping your sprocket concentric with your hub? This hub is the trick.
The bore is a 1/2 in. hole with two 1/8 in. keyways. Only one keyway is needed to drive most wheels, so the second one is extra.
Also, the keyways are consistently aligned with the mounting holes.













